Abstract
The kinetics of spherical agglomeration in a stirred vessel was investigated using sands, dispersed in agitated carbon tetrachloride and agglomerated with calcium chloride aqueous solutions, as a model system. The effects of stirring speed, baffles, solids loading, particle size and bridging liquid concentration were studied. It was found that agglomerate growth could be described by first-order kinetics, at least for the initial part of the process which is of most interest from the point of view of industrial applications. Particle aggregation and the relatively high solids concentrations used apparently accounted for this “restricted-in-space” behaviour. Empirical correlations were developed to relate the parameters in the kinetics equations to the experimental conditions.
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